# git rev-parse -q --verify 2860180770b4136b1d05f47ed85723aa93bd5bb5^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git next-test
error: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify 2860180770b4136b1d05f47ed85723aa93bd5bb5^{commit}
2860180770b4136b1d05f47ed85723aa93bd5bb5
# git checkout -q -f -B kisskb 2860180770b4136b1d05f47ed85723aa93bd5bb5
# git clean -qxdf
# < git log -1
# commit 2860180770b4136b1d05f47ed85723aa93bd5bb5
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Sat Mar 2 22:30:28 2019 +1100
# 
#     powerpc/kconfig: Select HAVE_FUTEX_CMPXCHG
#     
#     The futex code allows architectures to determine at runtime if they
#     support futex_atomic_cmpxchg_inatomic(). It does this by calling that
#     function early in boot and checking if it returns -ENOSYS.
#     
#     That is fine but unnecessary on powerpc, as we always have support for
#     futex_atomic_cmpxchg_inatomic() if the kernel is built with FUTEX
#     support. It also means the first page fault we take at boot is on a
#     deliberate NULL pointer in kernel space, which can be confusing if
#     you're debugging the page fault code.
#     
#     We can avoid the runtime check by selecting HAVE_FUTEX_CMPXCHG, so
#     let's do that.
#     
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-ld --version
# < git log --format=%s --max-count=1 2860180770b4136b1d05f47ed85723aa93bd5bb5
# < make -s -j 48 ARCH=i386 O=/kisskb/build/powerpc-next_i386-allnoconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  allnoconfig
# make -s -j 48 ARCH=i386 O=/kisskb/build/powerpc-next_i386-allnoconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap':
/kisskb/src/arch/x86/kernel/e820.c:650:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/powerpc-next_i386-allnoconfig_i386
# Build took: 0:00:15.734745